JPS5886212A - Switching device for feeding of grout - Google Patents
Switching device for feeding of groutInfo
- Publication number
- JPS5886212A JPS5886212A JP18308281A JP18308281A JPS5886212A JP S5886212 A JPS5886212 A JP S5886212A JP 18308281 A JP18308281 A JP 18308281A JP 18308281 A JP18308281 A JP 18308281A JP S5886212 A JPS5886212 A JP S5886212A
- Authority
- JP
- Japan
- Prior art keywords
- grout
- liquid
- switching
- switching valve
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
【発明の詳細な説明】
開示技術は地盤注入工事に於ける複数グラウトの選択注
入に伴うグラウト切換送給の技術分野に属する。DETAILED DESCRIPTION OF THE INVENTION The disclosed technology belongs to the technical field of grout switching and feeding associated with selective injection of a plurality of grouts in ground injection work.
而して、この発明はグラウト注入管内複数送給路の基端
に接続されるグラウト送給通路が対応する数のグラウト
ミキサー等のソースに接続され。Accordingly, in the present invention, the grout feeding passages connected to the proximal ends of the plurality of feeding passages in the grout injection pipe are connected to a corresponding number of sources such as grout mixers.
その中途に圧送ポンプを有するグラウト送給切換装置に
関する発明であり、特に、１つの切換バルブが上記送給
路側通路に接続され、他方の切換バルブが上記ソースに
接続する通路に設けられ、而して、該両１対の切換バル
ブ間に圧送ポンプを有する１本の通路が共有送給通路と
して接続され。This invention relates to a grout feeding switching device having a pressure pump in the middle thereof, and in particular, one switching valve is connected to the above-mentioned feeding path side passage, the other switching valve is provided in the passage connecting to the above-mentioned source, and the like. A passage having a pressure pump is connected between the pair of switching valves as a shared feeding passage.
該両切換バルブに対して吸入側の切換バルブと吐出側の
切換バルブの動作にタイムラグがある様に１、た制御装
置が電気的に接続されているグラウト送給切換装置に係
る発明である。This invention relates to a grout feeding switching device in which a control device is electrically connected so that there is a time lag between the operation of the switching valve on the suction side and the switching valve on the discharge side with respect to both switching valves.
周知の如く、地盤改良に於てグラウト注入が広く用いら
れているが、地盤の性情によって最適凝固を図ることと
、地下水汚染防止等の環境保全を図る要素とが大きな課
題となっており、従って。As is well known, grout injection is widely used in ground improvement, but the major challenges are achieving optimal coagulation depending on the characteristics of the ground and environmental conservation factors such as preventing groundwater contamination. .
限定領域に於ける最適注入には種々の注入技術が開発改
良されて来つつある。Various implantation techniques are being developed and improved for optimal implantation in limited areas.
そのうちで、同一注入管を用い、その複数グラウト送給
路に対して経時的にグラウトの種類を変えて選択的に送
給し、例えば、最初２ショット方式で瞬結グラウトを送
給し注入管周囲に瞬結パツ力を形成し、その後１５ショ
ット方式で浸透性二次グラウトを注入して理想的な土粒
子間浸透固結改良域を形成する様な技術が案出採用され
ている。Among them, the same injection pipe is used to selectively feed different types of grout over time to multiple grout feeding paths. A technique has been devised and adopted in which an instantaneous compaction force is created around the soil, and then a permeable secondary grout is injected using a 15-shot method to form an ideal soil particle-to-particle infiltration compaction improvement area.
従って、該棟複合グラウト注入に於ては地上で対応数の
グラウトソースのミキサー等を設置し。Therefore, when injecting grout into the building, a corresponding number of grout source mixers, etc. will be installed on the ground.
同一注入管の複数送給通路に選択的に対応グラウトを切
換え送給する必要がある。It is necessary to selectively switch and feed corresponding grouts to multiple feeding passages of the same injection pipe.
即ち、第１． ２． ３図の工程略図に示す様に、まず
、注入管１に対して送給路２より削孔水３を送給して、
地盤４内所定深度削孔し１次いで、送給路２及び５より
Ａ液＋Ｂ２液のグラウトを送給して管先端で混合して２
シヨツトの瞬結・やツカ６を形成し、地盤的間隙を充填
し、その後、切換バルブの操作により送給路２よりＡ液
を、送給路７よりＢ＋液を送給して１．５ショット方式
で管内混合送給して上記瞬結・やツカ６の周囲に二次グ
ラウト８を効果的に注入する様にする。That is, 1st. 2. As shown in the process diagram of FIG. 3, first, drilling water 3 is fed to the injection pipe 1 from the feed path 2,
A hole is drilled to a predetermined depth in the ground 4. 1. Next, grout consisting of liquid A and liquid B is fed through the feed channels 2 and 5 and mixed at the tip of the pipe.
The shot is flash-bonded and the crack 6 is formed, and the ground gap is filled. Then, by operating the switching valve, liquid A is fed from the feed path 2 and liquid B+ is fed from the feed path 7. The secondary grout 8 is effectively injected around the instantaneous lump 6 by mixed feeding in the pipe using a shot method.
さりながら１これ捷での切換バルブの切換操作は人手作
業によっていたため、圧送ポンプの吸入側の切換バルブ
と吐出側の切換バルブとのタイムラグが一定でなく、そ
のため、該圧送ポンプの前後の切換バルブ間の共通１本
の通路内にて選択グラウト以外の他のグラウトの残留分
が混合することになり、ケ゛ルタイムが設計通りにいか
ず、せっかくの優れた複合グラウト注入の利点が発揮さ
れない欠点があった。However, since the switching operation of the switching valve in this case was done manually, the time lag between the switching valve on the suction side and the switching valve on the discharge side of the pressure pump was not constant. The disadvantage is that the remaining grout other than the selected grout mixes in the single common passage between the valves, and the kettle time does not go as planned and the advantages of the excellent composite grout injection are not demonstrated. there were.
而して、複数本の注入管に対する切換弁操作を行うとそ
の欠点は増幅され、これを調整するには相当の熟練が要
り、管理も必要な難点があり、作業が極めて煩瑣である
不具合は払拭出来ず、工数が多くて結果的にコスト高に
なる不利点もあり。However, when operating the switching valve for multiple injection pipes, the drawbacks are amplified, and adjusting this requires considerable skill and management, which makes the work extremely complicated. There is also the disadvantage that it cannot be eliminated and requires a lot of man-hours, resulting in high costs.
精度保証が低い不都合さもあった。There was also the inconvenience of low accuracy guarantee.
この発明の目的は上述従来技術に基づく複合グラウト選
択注入に於ける単基圧送ポンプの前後の切換バルブの操
作に伴う欠点等を解決すべき問題点とし、該圧送ポンプ
、切換バルブ間の共通々路距離、グラウト種等により予
め、切換バルブのタイムク０ログラムを設定して両切換
バルブの時間ずれ動作により、該共通々路内に選択グラ
ウトのみ通過し、他のグラウトの残余、混入等をするこ
となりシ、地盤改良産業に於けるグラウト注入の利用分
野に益し得る優れたグラウト送給切換装置を提供せんと
するものである。The purpose of the present invention is to solve the problems associated with the operation of switching valves before and after a single pressure pump in selective injection of composite grout based on the above-mentioned prior art, and to solve common problems between the pressure pump and the switching valve. The time clock of the switching valve is set in advance according to the road distance, grout type, etc., and by the time-shifted operation of both switching valves, only the selected grout passes through the common path, and other grouts are left behind or mixed in. It is therefore an object of the present invention to provide an improved grout feed switching device that can benefit the application of grouting in the soil improvement industry.
上述目的に沿うこの発明の構成は上記問題点を解決すべ
く複数グラウトソース側の通路に接続した１つの切換バ
ルブと注入管の複数送給路に接続する通路に設けた他の
１つの切換バルブとの間に圧送ポンプを有する１つの共
通通路を設けて上記１対の切換バルブを独立に時間差動
動作する制御装置に電気的に接続する技術手段を講し、
而して。In order to solve the above-mentioned problems, the present invention has a configuration in which one switching valve is connected to a plurality of passages on the grout source side, and another switching valve is provided in a passage connected to a plurality of feed passages of an injection pipe. providing a common passage having a pressure pump between the valves and electrically connecting the pair of switching valves to a control device that operates independently and differentially in time;
Then.
該制御装置により所定選択グラウトが吸入送給されてグ
ラウト注入を行い１次いで、次の選択グラウト注入を行
うに際し該制御装置が吸入側切換・くルブを閉じ、吐出
側切換バルブを設定時間開放維持し両切換バルブ間の共
通々路間の選択グラウトを完全に送給し、送給し終った
ら、吸入側、吐出側の切換バルブを他の選択グラウト側
にタイムスケノユールに従って開き、残余グラウト混合
なく送給し、確実に設計ケ゛ルタイムで注入が行える様
にしたことを要旨とするものである。The control device sucks and feeds a predetermined selected grout and performs grout injection.Next, when injecting the next selected grout, the control device closes the suction side switching valve and keeps the discharge side switching valve open for a set time. Then, completely feed the selected grout between the common passages between both switching valves, and when the feeding is finished, open the switching valves on the suction side and discharge side according to the time schedule to the other selected grout side, and mix the remaining grout. The main purpose of this system is to ensure that the injection can be carried out within the designed time by delivering the injection without any problem.
次にこの発明の１実施例を第１図を援用し、第２１ｆｆ
ｌ以下の図面に基づいて説明すれば以下の通りである。Next, referring to FIG. 1, one embodiment of the present invention is shown in FIG. 21ff.
The explanation will be as follows based on the drawings below.
第４図に示す機構説明図に於て、９，１０．１１はグラ
ウトソースとしてのグラウトミキサーであり、Ａ液、Ｂ
ｌ液、Ｂ２液用にされ、Ａ液のグラウトミキサー９はグ
ラウト用圧送ポンｆ１２、流量、圧送圧計測装置１３を
直列に介し通路１４により注入管１の基端の外管の合流
管１５０通路２に直結接続されている。In the explanatory diagram of the mechanism shown in Fig. 4, 9, 10 and 11 are grout mixers as grout sources;
The grout mixer 9 for liquid A is connected to the confluence pipe 150 of the outer pipe at the proximal end of the injection pipe 1 through the passage 14 through the grout pressure pump f12, flow rate and pressure feeding pressure measuring device 13 in series. It is directly connected to 2.
又、Ｂ１のグラウトミキサー１０とＢ２のグラウトミキ
サー１１は通路１６．１６’が１つの切換バルブとして
の吸入側電磁式三方バルブ１７に接続されている。Further, the passages 16 and 16' of the B1 grout mixer 10 and the B2 grout mixer 11 are connected to a suction side electromagnetic three-way valve 17 as one switching valve.
そして、上記合流管１５の一方の送給路７に接続する通
路１８と注入管１の内管５に接続する通路１９は他方の
切換バルブとしての吐出側電磁式三方バルブ１７′に接
続はれている。The passage 18 connected to one feed passage 7 of the merging pipe 15 and the passage 19 connected to the inner pipe 5 of the injection pipe 1 are connected to the discharge side electromagnetic three-way valve 17' as the other switching valve. ing.
従って、上記通路１４はＡ液グラウト専用、通路１６．
１８はＢ＋液グラウト専用１通路１６′。Therefore, the passage 14 is dedicated to the A-liquid grout, and the passage 16.
18 is one passage 16' exclusively for B+ liquid grout.
１９はＢ２液グラウト専用とされていることになる０
そして、上記両三方バルブ１７．１７’の間にはＢ１液
、Ｂ２液共通々路の１本の通路２０がグラウト用圧送ポ
ンプ１２′が介装して接続されている。19 is designated exclusively for grouting the B2 liquid. Between the two three-way valves 17 and 17', there is one passage 20 which is a common path for the B1 liquid and the B2 liquid, and the grout pressure pump 12' is connected to the grouting pump 12'. connected via an intermediary.
而して、」−記三方バルブ１７．１７’には各々制御エ
アシリンダ２１．２１’が連結され、圧縮エア源２２に
接続されるエアホース２３により動作される電磁式スプ
ールバルブ２４． ２４’ＫＪ：り切換えられる様にさ
れている。A control air cylinder 21.21' is connected to each of the three-way valves 17.17', and an electromagnetic spool valve 24.21' is operated by an air hose 23 connected to a compressed air source 22. 24'KJ: Can be switched.
一方、２５はタイムラグ動作制御装置であり。On the other hand, 25 is a time lag operation control device.
タイマー、リレー、シーケンス機構等の電気制御装置、
計測装置等を装備しており、前記流量、圧送圧計測装置
１３にケーブル２６で接続されると共に上記三方バルブ
１７．１７’の電磁スツールバルブ２４．２４’にケー
ブル２７．２７’で接続されて該三方・・ルプ１７，１
７’を独立に時間差動切換動作する様にされている。Electric control devices such as timers, relays, sequence mechanisms, etc.
It is equipped with a measuring device, etc., and is connected to the flow rate and pumping pressure measuring device 13 by a cable 26, and is also connected to the electromagnetic stool valve 24.24' of the three-way valve 17.17' by a cable 27.27'. The three sides...rupu 17,1
7' can be independently time-differentially switched.
上述構成に於て、前述第１． ２． ３図の複合グラウ
ト注入を行うに際しては、第１図に示す様に合流管１５
の一方の送給路２から図示しない仙の切換パルプ（手動
等適宜のもので良い）により削孔水を送給して注入管１
を地盤４に対し所定深度まで削孔貫入させる。In the above configuration, the above-mentioned 1. 2. When performing the composite grout injection shown in Fig. 3, the confluence pipe 15 is inserted as shown in Fig. 1.
Borehole water is fed from one of the feed channels 2 to the injection pipe 1 by means of an unillustrated switching pulp (manual or other suitable method may be used).
drilled into the ground 4 to a predetermined depth.
この間、三方バルブ１７．１７’は閉の状態にされ、圧
送ポンフ’１２．１２’は勿論停止状態にある。During this time, the three-way valve 17.17' is closed and the pressure pump '12.12' is of course stopped.
而して、所定深度に達した状態で上記切換バルブを削孔
水側からＡＩ液グラウト通路１４に切換え接続し、制御
装置２５を起動させる。Then, when the predetermined depth is reached, the switching valve is switched from the drilling water side to the AI liquid grout passage 14 and the control device 25 is activated.
そこで、設定ノログラムに従い、両三方パルプ１７．１
７’がＢ２２液グラウト路１６’、１９側に同時に接続
されて開放され、グラウト用圧送ポンプ１２，１２’を
起動をせる〇
そのため、Ａ液グラウトは通路１４を通り合流管１５の
送給路２に送給され、Ｂ２液ダラウトは通路１６’、２
０を１通□す、注入管１の内管送給路５をそれぞれ別送
きれ、第２１ス模式図に示す様に管先端で混合され２シ
ヨツトグラウトとして地盤４内に注入され瞬結・ゼツカ
６を形成し、地盤間隙に浸入凝結する。Therefore, according to the setting norogram, both three-way pulp 17.1
7' is connected to the B22 liquid grout passages 16' and 19 at the same time and opened, and the grout pressure pumps 12 and 12' are started. Therefore, the A liquid grout passes through the passage 14 and enters the supply passage of the confluence pipe 15. 2, and the B2 liquid draft is supplied to the passages 16' and 2.
As shown in the 21st schematic diagram, they are mixed at the tip of the pipe and injected into the ground 4 as 2 shot grouts to form instant setting and ZETSUKA 6. It forms, seeps into the ground gap and condenses.
そこで、２ショット瞬結性−次グラウドの注入が終わり
に近づくと、第６１テタイムチヤートに示す様に制御装
置２５のプログラムに従って吸引側三方バルブ１７を閉
じ、吐出側の三方バルブ１７′をＢ２２液グラウト路１
９側にシーケンスを介しタイマーにより連通接続させ続
けておく。Therefore, when the injection of the two-shot instantaneous powder approaches the end, the three-way valve 17 on the suction side is closed according to the program of the control device 25, and the three-way valve 17' on the discharge side is closed at B22, as shown in the 61st time chart. Liquid grout path 1
9 side through a sequence and a timer.
従って、共通々路２０内のＢ２液グラウトは圧送ボンｆ
１２′により確実に吸引されて内管送給路５内に送給さ
れ、第６図に示す様にＴ２時間経過して完全に送給か終
わると、上記タイマーを介し両三方バルブ１７．１７’
がＢ＋液グラウト通路１６．１８側に制御装置２５によ
り開き接続きれる。Therefore, the B2 liquid grout in the common passage 20 is fed by the pressure-fed bomb f.
12' and is fed into the inner tube feeding path 5. When the feeding is completed after T2 time has elapsed as shown in FIG. 6, both the three-way valves 17 and 17 '
is opened and connected to the B+ liquid grout passage 16, 18 side by the control device 25.
そこで、Ｂｌ液グラウトミキサー１０からＢ＋液グラウ
トが通路１６，２０．１８を通り、何ら通路２０内でＢ
２液グラウト残留分と混合されることなく、又、Ａ液グ
ラウトは通路１４を通り、それぞれ合流管１５の送給路
７，２に供給され。Therefore, the B+ liquid grout from the Bl liquid grout mixer 10 passes through the passages 16, 20, and 18, and there is no B+ liquid in the passage 20.
The A-liquid grout passes through the passage 14 and is supplied to the feed passages 7 and 2 of the confluence pipe 15, respectively, without being mixed with the remaining two-liquid grout.
第３図に示す様に注入管１の外管内で混合されなから１
５シヨツトグラウトとして送給され、管先端から瞬結パ
ツカ６を通り周囲地盤４に浸透して二次グラウト８を形
成し、終期では三方ノ・ルブ１７が閉じられ、共通々路
２０内のＢｌ液グラウトが完全に吐出される。As shown in FIG.
5 is fed as shot grout, penetrates into the surrounding ground 4 from the tip of the pipe through an instant bonding patcher 6, and forms a secondary grout 8. At the final stage, the three-way no. 17 is closed, and the Bl liquid in the common common channel 20 is fed. The grout is completely discharged.
この様にして複合注入が１ステップ分終了すると、制御
装置２５を介し三方ノ・ルプ１７，１７’が閉じられ、
圧送７」センプ１２，１２’が停止し、注入管１を１ス
テップ分上昇させ以下上述工程を反復して複合注入を行
っていく。When one step of composite injection is completed in this way, the three-way nozzle 17, 17' is closed via the control device 25.
Pressure feeding 7'' The pumps 12, 12' are stopped, the injection tube 1 is raised by one step, and the above-mentioned steps are repeated to perform composite injection.
尚、この発明の実施態様は上述実施例に限るものでない
ことは勿論であり１例えば、注入管は複数本打設でも良
く、両切換バルブに対するグラウト選択は２種に限らず
、３棟以上で該切換パルプをロータリバルブにしても良
く、他の開閉バルブと絹み合わせる様にしても良い等種
々の態様が採用可能である。It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments.1 For example, a plurality of injection pipes may be installed, and the selection of grouts for both switching valves is not limited to two types, but can be applied to three or more types. Various embodiments can be adopted, such as the switching pulp may be a rotary valve or may be combined with other opening/closing valves.
上述の如く、この発明によれば、１つの注入管に対し複
合グラウトを選択的に時間を変えて組み合せ送給するグ
ラウト送給切換装置に於て、複数のグラウトソース接続
切換バルブと注入管複数送給路接続通路に設けた切換バ
ルブを圧送ポンプを有する共通通路を設け、該両切換バ
ルブをタイムラグ動作制御装置に電気的に接続させたこ
とにより、基本的に１つの選択的に送給するグラウトを
共通通路を通過するに際し吸引側切換バルブと吐出側切
換バルブとを設定時間差で開閉動作させるため、グラウ
トを別に選択して送給する場合、吸入側切換バルブを閉
じ、吐出側切換バルブを開いた捷まにして完全に共通通
路内を前グラウトを吐出送給した後、次の選択グラウト
に対して吸入側切換バルブを開く様にし、従って、グラ
ウト選択送給に際して該共通通路内で前後の選択グラウ
ト−で１種の残留グラウトとの混合がなされないため、
混合量が設定量と変化したり、ケ゛ルタイムが変化した
りすることがなく、従って、設計通りの接合注入が行わ
れる優れた効果が奏てれる。As described above, according to the present invention, in a grout feeding switching device that selectively feeds a combination of composite grouts to one injection pipe at different times, a plurality of grout source connection switching valves and a plurality of injection pipes are used. By providing a common passage with a pressure pump for the switching valve provided in the feeding path connection passage and electrically connecting both switching valves to the time lag operation control device, basically one selective feeding is possible. When grout passes through a common passage, the suction side switching valve and the discharge side switching valve are opened and closed at a set time difference, so when grout is selected and fed separately, the suction side switching valve is closed and the discharge side switching valve is closed. After the pre-grout is completely discharged and fed within the common passage with the opening, the suction side switching valve is opened for the next selected grout. Because the selected grout is not mixed with one type of residual grout,
There is no change in the mixing amount from the set amount or in the kettle time, and therefore an excellent effect is achieved in that the bonding injection is performed as designed.
又１両切換バルブが電気的に制御されるため、正確に該
切換バルブ操作が出来、それも自動的に（１１）
出来るため１人為作業がほとんどなく、精度も良く、能
率も良く、グラウト量も設計量で良く、コストダウンも
図れる優れた効果が奏される。In addition, since the one-way switching valve is electrically controlled, it is possible to operate the switching valve accurately and automatically (11), so there is almost no manual work by one person, and the accuracy and efficiency are high, and the amount of grouting can be reduced. The design quantity is also sufficient, and the excellent effect of reducing costs can be achieved.
従って、正確に高精度に施工することが困難である注入
に於ても極めて正確な注入がシステム的に可能にするこ
とが出来る優れた効果がある。Therefore, even in cases where it is difficult to carry out accurate and highly precise injection, there is an excellent effect in that extremely accurate injection can be performed systemically.
第１． ２． ３図は複合グラウト注入工程説明断面図
、第４図以下はこの発明の１実施例の説明図であり、第
４１図は全体概略ブロック説明図、第５図は第４図拡大
ブロック説明図、第６図は切換バルブフローチャート説
明図である。
１・・・注入管、 ２． ５． ７・・・送
給路、９．１０．１１・・・グラウトソース、１２．１
２’・・・ポンプ、１６． １６’、 ２０・・・通路
。
１７、 １７’、 ２５・・・切換装置、１７．１７
’・・・切換バルブ、２０・・・１つの通路。
２５・・・タイムラグ動作制御装置
機 −区1st. 2. 3 is a cross-sectional view explaining the composite grout injection process, FIG. 4 and the following are explanatory views of one embodiment of the present invention, FIG. 41 is an overall schematic block diagram, and FIG. 5 is an enlarged block diagram of FIG. FIG. 6 is an explanatory diagram of a switching valve flowchart. 1... Injection tube, 2. 5. 7... Feeding path, 9.10.11... Grout source, 12.1
2'...pump, 16. 16', 20...Aisle. 17, 17', 25... switching device, 17.17
'...Switching valve, 20...1 passage. 25...Time lag operation control device -ku
Claims (1)
ラウトソースにポンプを有して接続する通路に介装され
るグラウト送給切換装置において、上記複数の送給路に
接続される通路に接続された１つの切換バルブと前記対
応複数のグラウトソースからの通路に接続された他の切
換バルブとの間に圧送ポンプを有する１つの通路が接続
され、而して該両切換パルプが該両切換パルプに対する
タイムラグ動作制御装置に電気的に接続されていること
を特徴とするグラウト送給装置。In a grout feed switching device that is connected to a composite feed path at the ends of the injection pipes and is connected to a corresponding grout source with a pump, the path is connected to the plurality of feed paths. A passageway having a pressure pump is connected between one switching valve connected to the grout source and another switching valve connected to passages from the corresponding plurality of grout sources, so that both switching pulps are A grout feeding device, characterized in that it is electrically connected to a time lag operation control device for both switching pulps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18308281A JPS5886212A (en) | 1981-11-17 | 1981-11-17 | Switching device for feeding of grout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18308281A JPS5886212A (en) | 1981-11-17 | 1981-11-17 | Switching device for feeding of grout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5886212A true JPS5886212A (en) | 1983-05-23 |
| JPH033767B2 JPH033767B2 (en) | 1991-01-21 |
Family
ID=16129440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18308281A Granted JPS5886212A (en) | 1981-11-17 | 1981-11-17 | Switching device for feeding of grout |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5886212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797846B1 (en) | 2007-04-16 | 2008-01-24 | (주)세종산업개발 | Deep mixing wall-foundation automatic material input system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55142816A (en) * | 1979-04-20 | 1980-11-07 | Kyokado Eng Co Ltd | Constructing method and device by using composite grout |
| JPS5612417A (en) * | 1979-07-10 | 1981-02-06 | Japan Steel & Tube Constr Co Ltd | Chemical injection apparatus |
-
1981
- 1981-11-17 JP JP18308281A patent/JPS5886212A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55142816A (en) * | 1979-04-20 | 1980-11-07 | Kyokado Eng Co Ltd | Constructing method and device by using composite grout |
| JPS5612417A (en) * | 1979-07-10 | 1981-02-06 | Japan Steel & Tube Constr Co Ltd | Chemical injection apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797846B1 (en) | 2007-04-16 | 2008-01-24 | (주)세종산업개발 | Deep mixing wall-foundation automatic material input system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033767B2 (en) | 1991-01-21 |
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